Region
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Bear River (Utah-Idaho)
1
Belgium
1
Belize
2
Bering Strait
1
Berlin
1
Berlin (Germany)
1
Black Belt (Ala. and Miss.)
1
Black Kettle National Grassland (Okla. and Tex.)
1
Blackstone River Valley (Mass. and R.I.)
1
Blue Ridge Mountains Region
1
Bolivia
1
Bonaire
1
Botswana
1
Brazil
4
British Columbia
4
Bulgaria
2
Burrup Peninsula (W.A.)
2
Cairo
1
Calgary
1
Calgary (Alta.)
1
California
6
Callabonna, Lake, Region (S. Aust.)
1
Cambodia
4
Camino de Santiago de Compostela
1
Campania
2
Campeche, Bay of
1
Canada
5
Canary Islands
1
Canberra (A.C.T.)
2
Cape Lookout National Seashore
1
Cape Lookout National Seashore (N.C.)
1
Caribbean Area
2
Caribbean Netherlands
1
Caribbean, English-speaking
1
Central America
2
Chaco Canyon
2
Chaco Culture National Historical Park
2
Chaco Culture National Historical Park (N.M.)
2
Charlevoix Region
1
Chennai
1
Chennai (India)
1
Chile
4
China
19
Chongqing
1
Colombia
6
Colorado
1
Columbia River
2
Columbia River Gorge (Or. and Wash.)
1
Columbia River Gorge National Scenic Area (Or. and Wash.)
1
Congo (Brazzaville)
2
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